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Full vulnerability report · 2026
CVE-2026-26127High confidence

.NET Denial of Service Vulnerability

Microsoft · .NET 10.0

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 1.17% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft .NET 10.0 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Distribution package intelligence

Release-specific package status

Alpine, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

5 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Alpine v3.23v3.23 · communitydotnet10-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.10.0.4-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.23v3.23 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.14-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.22v3.22 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.14-r0Alpine Security Database ↗Source updated 11 Sep 2026
Alpine v3.21v3.21 · communitydotnet9-runtimeVendor fix publishedAlpine records a security fix at this version. An absent entry does not mean the package is unaffected.9.0.14-r0Alpine Security Database ↗Source updated 19 Aug 2026
Ubuntu 24.04 LTSnoble · standard archivedotnet10Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.10.0.104-10.0.4-0ubuntu1~24.04.1Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Open-source package ranges52 source-attributed ranges

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
NuGetMicrosoft.Bcl.MemoryECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.Bcl.MemoryECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-armECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-armECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-armECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-musl-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.linux-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.osx-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-armECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-armECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-arm64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x64ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x64ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x86ECOSYSTEM: introduced 9.0.0; fixed 9.0.149.0.14OSV record ↗aggregator derived · 10 Sep 2026
NuGetMicrosoft.NetCore.App.Runtime.win-x86ECOSYSTEM: introduced 10.0.0; fixed 10.0.410.0.4OSV record ↗aggregator derived · 10 Sep 2026
nugetMicrosoft.Bcl.Memory>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.Bcl.Memory>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-arm64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-arm64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-x64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-musl-x64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-x64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.linux-x64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.osx-arm64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.osx-arm64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.osx-x64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.osx-x64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-arm64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-x64>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-x64>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-x86>= 9.0.0, <= 9.0.139.0.14GitHub advisory ↗upstream repository advisory · 12 Mar 2026
nugetMicrosoft.NetCore.App.Runtime.win-x86>= 10.0.0, <= 10.0.310.0.4GitHub advisory ↗upstream repository advisory · 12 Mar 2026
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-10691

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

What

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-125 ↗

CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-125
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-0657Microsoft ASP.NET und .NET: Mehrere Schwachstellen

Ein lokaler. oder ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Microsoft ASP.NET und Microsoft .NET ausnutzen, um Administratorrechte zu erlangen oder um einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260311Security Bulletin 11 Mar 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 11 Mar 2026, published on 11 March 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0274Multiples vulnérabilités dans les produits Microsoft

De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0272Multiples vulnérabilités dans Microsoft .Net

De multiples vulnérabilités ont été découvertes dans Microsoft .Net. Elles permettent à un attaquant de provoquer une élévation de privilèges et un déni de service à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0271Multiples vulnérabilités dans Microsoft Windows

é Microsoft Windows CVE-2026-25180 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25181 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25185 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25186 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25187 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25188 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25189 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-25190 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-26111 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-26127 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-26128 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-26132 du 10 mars 2026 Bulletin de sécurité Microsoft Windows CVE-2026-26141 du 10 mars 2026 Une gestion de version détaillée se trouve à la fin de ce document. Risques Atteinte à la confidentialité des données Contournement de la politique de sécurité Déni de service à distance Exécution de code arbitraire à distance Élévation de privilèges Systèmes affectés Azure Automation Hybrid Worker Windows Extension versions antérieures à 1.3.74 Windows 10 Version 1607 pour systèmes 32 bits versions antérieures à 10.0.1

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-16Aggiornamenti Mensili Microsoft

tivamente e/o per alcune delle quali risulta disponibile in rete anche un “proof of concept”, riguardano: Microsoft SQL Server : identificata tramite la CVE-2026-21262, di tipo “ Elevation of Privilege ” e con score CVSS v3.1 pari a 8.8. Tale vulnerabilità interessa le istanze Microsoft SQL Server ed è causata da un’inadeguata gestione del controllo degli accessi (Improper Access Control). Nel dettaglio, un attaccante remoto autenticato, operante con privilegi minimi, potrebbe sfruttare tale difetto logico per elevare le proprie autorizzazioni fino al livello di sysadmin tramite rete sui sistemi target. .NET Runtime : identificata tramite la CVE-2026-26127, di tipo “ Denial of Service ” e con score CVSS v3.1 pari a 7.5. Tale vulnerabilità interessa l'ambiente di esecuzione .NET (versioni 9.0 e 10.0) ed è causata da un errore di lettura fuori dai confini della memoria allocata (Out-of-Bounds Read). Nel dettaglio un attaccante, remoto non autenticato, potrebbe inviare dati in input appositamente predisposti; lo sfruttamento di tale anomalia provoca il crash del processo, causando un'interruzione della disponibilità (Denial of Service) sui servizi interessati. Prodotti e versioni affette .NET ASP.NET Core Active Directory Domain Services Azure Arc Azure Compute Gallery Azure Entra ID Azure IoT Ex

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-009868マイクロソフトの.NET等の複数製品における境界外読み取りに関する脆弱性

．NETにおける境界外読み取りにより、権限のない攻撃者がネットワークを介してサービス拒否を引き起こす可能性があります。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-6724MS 3월 보안 위협에 따른 정기 보안 업데이트 권고

6-Mar o 취약점 요약 정보 (총 123개) | 제품 카테고리 | CVE 번호 | CVE 제목 | |:---:|:---:|:---:| | Azure Entra ID | CVE-2026-26148 | Linux용 Microsoft Azure AD SSH 로그인 확장 권한 상승 취약성 | | Microsoft Office Excel | CVE-2026-26144 | Microsoft Excel 정보 유출 취약성 | | Azure Arc | CVE-2026-26141 | Hybrid Worker 확장(Arc 지원 Windows VMs) 권한 상승 취약성 | | Microsoft Office | CVE-2026-26134 | Microsoft Office 권한 상승 취약성 | | Windows Kernel | CVE-2026-26132 | Windows 커널 권한 상승 취약성 | | .NET | CVE-2026-26131 | .NET 권한 상승 취약성 | | ASP.NET Core | CVE-2026-26130 | ASP.NET Core 서비스 거부 취약성 | | Windows SMB Server | CVE-2026-26128 | Windows SMB Server Elevation of Privilege Vulnerability | | .NET | CVE-2026-26127 | .NET 서비스 거부 취약성 | | Payment Orchestrator Service | CVE-2026-26125 | 결제 오케스트레이터 서비스 권한 상승 취약성 | | Azure Compute Gallery | CVE-2026-26124 | Microsoft ACI 기밀 컨테이너 권한 상승 취약성 | | Microsoft Authenticator | CVE-2026-26123 | Microsoft Authenticator 정보 공개 취약성 | | Azure Compute Gallery | CVE-2026-26122 | Microsoft ACI 기밀 컨테이너 정보 공개 취약성 | | Azure IoT Explorer | CVE-2026-26121 | Azure IoT Explorer 스푸핑 취약성 | | Windows Admin Center | CVE-2026-26119 | Windows Admin Center 권한 상승 취약성 | | Azure MCP Server | CVE-2026-26118 | Azure MCP Server Tools 권한 상승 취약성 | | Azure Windows Virtual Machine Agent | CVE-2026-26117 | Arc 지원 서버 - Azure Connected Machine 에이전트 권한

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0085Kwetsbaarheden verholpen in Microsoft Developer tools

Een kwaadwillende kan de kwetsbaarheden misbruiken om een Denial-of-Service veroorzaken of zich verhoogde rechten toekennen binnen een applicatie die gebruik maakt van de kwetsbare .NET. ``` .NET: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26131 | 7.80 | Verkrijgen van verhoogde rechten | | CVE-2026-26127 | 7.50 | Denial-of-Service | |----------------|------|-------------------------------------| ASP.NET Core: |----------------|------|-------------------------------------| | CVE-ID | CVSS | Impact | |----------------|------|-------------------------------------| | CVE-2026-26130 | 7.50 | Denial-of-Service | |----------------|------|-------------------------------------| ```

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 10 Mar 2026 · Last source change 19 Jun 2026, 18:17 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-10691
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
    Before
    no BlackTree article
    After
    1 BlackTree article
    BlackTree editorial ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Mitigation available.
    Before
    Awaiting fix
    After
    Mitigation available
    CSIRT Italia ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Remediation guidance recorded
ENISA EUVD · EUVD-2026-10691↗CSIRT Italia remediation guidance↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-26127 · cve.blacktree.nl